Competition Drives Clumpy Species Coexistence in Estuarine Phytoplankton


Autoria(s): Segura, AM; Kruk, C; Calliari, D; García-Rodriguez, F; Conde, D; Widdicombe, CE; Fort, H
Data(s)

08/01/2013

Resumo

Understanding the mechanisms that maintain biodiversity is a fundamental problem in ecology. Competition is thought to reduce diversity, but hundreds of microbial aquatic primary producers species coexist and compete for a few essential resources (e.g., nutrients and light). Here, we show that resource competition is a plausible mechanism for explaining clumpy distribution on individual species volume (a proxy for the niche) of estuarine phytoplankton communities ranging from North America to South America and Europe, supporting the Emergent Neutrality hypothesis. Furthermore, such a clumpy distribution was also observed throughout the Holocene in diatoms from a sediment core. A Lotka-Volterra competition model predicted position in the niche axis and functional affiliation of dominant species within and among clumps. Results support the coexistence of functionally equivalent species in ecosystems and indicate that resource competition may be a key process to shape the size structure of estuarine phytoplankton, which in turn drives ecosystem functioning.

Formato

text

Identificador

http://plymsea.ac.uk/id/eprint/5572/1/Segura%20et%20al%20Scientific%20Reports%202013.pdf

Segura, AM; Kruk, C; Calliari, D; García-Rodriguez, F; Conde, D; Widdicombe, CE; Fort, H. 2013 Competition Drives Clumpy Species Coexistence in Estuarine Phytoplankton. Scientific Reports, 3. https://doi.org/10.1038/srep01037 <https://doi.org/10.1038/srep01037>

Idioma(s)

en

Relação

http://plymsea.ac.uk/id/eprint/5572/

http://dx.doi.org/10.1038/srep01037

doi:10.1038/srep01037

Palavras-Chave #Marine Sciences
Tipo

Publication - Article

PeerReviewed

Direitos

cc_by_nc_nd